1565879982 has 8 divisors (see below), whose sum is σ = 3131759976. Its totient is φ = 521959992.

The previous prime is 1565879971. The next prime is 1565879989. The reversal of 1565879982 is 2899785651.

It is a sphenic number, since it is the product of 3 distinct primes.

1565879982 is an admirable number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1565879989) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 130489993 + ... + 130490004.

It is an arithmetic number, because the mean of its divisors is an integer number (391469997).

Almost surely, 2^1565879982 is an apocalyptic number.

1565879982 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1565879982 is a wasteful number, since it uses less digits than its factorization.

1565879982 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 260980002.

The product of its digits is 10886400, while the sum is 60.

The square root of 1565879982 is about 39571.2014222465. The cubic root of 1565879982 is about 1161.2333250912.

The spelling of 1565879982 in words is "one billion, five hundred sixty-five million, eight hundred seventy-nine thousand, nine hundred eighty-two".